Locks



June 5,' 1962 A. KOPPL 3,037,802

LOCKS Filed Aug. 29, 1958 2 Sheets-Sheet 1 22d FIGIZ. 21 2\ 22a j W 1; I 'f" me so 71' ,j 20a 1' 2| 22 2| 24-i- 1 FGO i I 25C; 4 48b FGo3. 31 :9

F'G'GI FIGS. Nab

INVENTOR.

ADOLF KOPPL.

FIG. 4. BY

MAXWELL E. SPARROW ATTORNEY.

June '5, 1962 A. KOPPL LOCKS Filed Aug. 29, 1958 2 Sheets-Sheet 2 $5 5k; FIGJG. FIGJZ F|G.l8.

FIGJ4.

IN V EN TOR. ADOZF KOPPL MAXWELL E.SPARROW.

ATTORNEY.

United States Patent LOCKS Adolf Koppl, 10 Post Ave New York 34, NY. Filed Aug. 29, 1958, Ser. No. 758,101 2 Claims. (Cl. 292153) The present invention generally relates to locks of general application and more particularly is a combined anti-jimmy and bolt lock applied to movable doors and associated stationary jambs or frames to prevent unauthorized entry.

It is common practice to provide a door with a safety chain which is usually permanently attached to the frame or jamb of the door, and when attached to the door proper, prevents the full opening of the door. It is also common practice to provide a door with a separate bolt lock opera ble from the inside to lock the door.

It is an object of the present invention to provide a door lock which combines into a single unit a door lock casing and a bolt device operable from the inside.

A further object of the present invention is to provide a combined primary and secondary luck so arranged that the primary lock may be controlled from the inside or outside and the secondary lock controlled only from the inside.

A still further object of the present invention is to provide a lock casing in which the auxiliary bolt is slidably mounted for reception in the keeper in which the primary lock latch or bolt is received.

Yet a further object of the present invention is to provide a simple, economical, eflicient and durable bolt lock.

These and other objects and advantages of the invention will appear as the description proceeds, it being understood, however, that it is not intended that the invention be limited to the exact details described herein which illustrate some satisfactory examples of many which may be obtained as a result of the knowledge gained or gleaned from an understanding of the invention; and it is further intended that there be included, as part of the invention all such obvious changes and modifications thereof as would occur to a person skilled in the art to which this invention pertains and as would fall within the scope of the claims.

In the drawings:

FIG. 1 is a front elevation partly in section of a lock (with bolt operable to the right) according to the invention;

FIG. 2 is a sectional view on line 22 of FIG. 1;

FIG. 3 is a sectional view on line 33 of FIG. 1;

FIG. 4 is a view of the lock casing portion of a lock similar to FIG. 1, except that the bolt is operable to the left;

FIG. 5 is a sectional view on line 5--5 of FIG. 4;

FIG. 6 is an enlarged detail view (partly in section) of the bolt according to the invention and showing the swinging handle;

FIG. 7 is a front elevation of a bolt according to the invention in a modified form (bolt in extended position);

FIG. 8 is an end view of FIG. 7;

FIG. 9 is a view of the bolt seen in FIG. 7, with bolt portion partly withdrawn;

FIG. 10 is an end view thereof;

FIG. 11 is a view similar to FIGS. 7 and 9 with bolt portion completely withdrawn;

FIG. 12 is a front elevation of a bolt according to the invention in a further modified form with bolt position shown in inoperative position;

FIG. 13 is a view similar to FIG. 12, showing the bolt portion in operative position;

FIG. 14 is a sectional view on line 14-14 of FIG. 12;

FIG. 15 is a view similar to FIG. 14, with knob extended for shifting of the bolt portion; and

3,937,802 Patented June 5, 1962 FIGS. 16, 17 and 18 are end views showing other possible shapes of slide bolts employable in the invention.

Referring now to the drawings which show examples of carrying out the invention, there is disclosed a lock casing 20 having the usual lugs 21 securing the casing to the door 22 as by means of screws 22a, and a keeper 23. The usual lock-operating knob is seen at 24 and there may be provided the smaller rotatalble knob 25 to control the latch or bolt 26.

Casing 20 is provided with an extension or flange 20a having fixed therewithin guides or brackets 27 having rectangular openings within which is slidably guided and accommodated an elongate shaft or bolt 28 of preferably rectangular cross section. Within shaft or bolt 28 is a longitudinal bore 28a which receives a rotatable pin 28]) to which is threadedly engaged an outwardly directed extension or handle 29 provided with the knob 29a. Shaft or bolt 28 has a cut-out 28c to permit radial movement of handle 29 resulting from free rotation of pin 28b.

The outer wall 30 of easing extension 20a has a substantially U-shaped slot 31 made up of a longitudinal portion 31a and two transverse portions, 31b and 31c. The member or handle 29 is accommodated and guided in slot portion 31a when it is moved in the latter portion 3111 from one end thereof to the other.

Keeper 23 is attached to the frame or jamb '32 as by means of the screws 33 and the keeper may be provided with two sockets or recesses 34, 35, respectively disposed in the wall 30a, the former recess 34 accommodating the conventional bolt or latch 26, and the latter recess 35 accommodating the end portion of the shaft or elongate bolt 28 when the latter is in locked position.

By providing the slot portions 31b and 310, it is evident that the handle extension 29 of the bolt 28 may be swung down into engagement with the slot portions 31b, 310, respectively, when the bolt is in retracted inoperative and extended operative positions.

To place the bolt in locked position with its free end housed in recess 35 of keeper 23, all that is required is to raise the bolt extension or handle 29 with fingers of a hand and slide blot 28 to the right (FIG. 1) or to the left (FIG. 4). Then the handle 29 may be swung down into engagement with the transverse slot portion 31c and thus positioned out of the way. Handle 29 will automatically drop down in slot 31b or 310 at the same time rotating pin 28b.

FIG. 4 is a view similar to FIG. 1, except that in FIG. 1 the lock has bolts 26, 28 operable to the right, while in FIG. 4 the said bolts are operable to the left, one or the other locks being used depending on which side the door opens. The lock casing is indicated by the number 45 and its extension for the auxiliary lock by 45a.

FIG. 6 is an enlarged view partly in section of the bolt construction illustrated in FIGS. 1 and 4. The bolt 28, although preferably square, may be of any of the shapes shown in FIGS. 16, l7, 18. The extension or member 29 is screw-threaded into the rotatable pin 28b rotating in bore 28a.

FIGS. 7 to 11, inclusive, disclose a bolt lock having a housing 50 provided with the lugs 51 for attachment to a door or the like. The elongate shaft or bolt 52 with its handle or member 53 secured to a cylindrical pin 54 rotatable within shaft 52, is similar to the corresponding parts seen in FIGS. 1, 2 and 3. However, the housing 50 has a substantially H-shaped slot made up of the trans- Verse slots 56 and 57 connected in their middles by the longitudinal slot 56a, the latter acting as a guide for sliding the shaft 52 into alternate operative and inoperative positions. The transverse slots 56, 57 serve the same function as heretofore stated with respect to the previously described locks, as seen in the figures. By providhas a cylindrical bore '60, 28a, respectively, open at one end of the shaft for insert-ion of the cylindrical pin 54 to which handle 53 is attached. In FIG. 16, the shaft or bolt 61 is hexagonal in section. In FIG. 17 the shaft or bolt 62 has two arcu-ate and two straight sides, whereas, in FIG. 18, the shaft or bolt 63 is substantially elliptical. In fact the shaft or bolt may be of any desirable shape, depending upon the strength desired and the use the lock bolt is put to. It is evident that the shape of the recess .or cavity in the keeper must conform to the shape of the .bolt or shaft. In FIGS. 16, 17 and 18, the respective numbers 65, 66 and 67 indicate the transverse slots in the bolts or shafts 61, 62 and 63 for radial movement of the handle 53 which is attached to the cylindrical pin 54.

FIGS. 12' to 15, inclusive, show a further form of the invention which comprises a housing 70 having a longitudinal slot 71 terminating at both its ends in enlarged .arcuate openings 72, 73. Within the housing 70 is slidably disposed the shaft or bolt 74 through which passes the inner portion of a plunger 75, the extremity of which projects from the bolt 74. Plunger 75 has a disc-like enlargement 751 from which extends the knurled knob 75!). Between the inner side'76 of bolt 74 and a collar or stop 78 held in position by pin 77 secured to the extremity of plunger 75, is an expansion spring 79 normally urging plunger 75 inwardly. When the plunger 75 reaches either opening 72 or 73, it will be drawn inwards with its collar or disc 75a contained within the said opening so that the bolt 74 cannot be operated until the plunger is manually pulled outward against the action of spring 79. .Then'the #bolt 74 may be shifted or slid from an operative to an inoperative position or vice versa.

1. In a lock having a casing provided with conventional locking mechanism, an extension for said casing, said extension having guides provided with openings, a bolt slidably guided in said openings and extendable from a side of said casing extension, a longitudinal bore within said bolt, a rotatable pin within said bore, an outwardly directed operating handle engaging said pin, said bolt having a cutout to permit radial movement of said handle, said casing extension having an outer wall provided with a substantially U-shaped slot comprising a longitudinal portion and transverse portions joining the ends of said longitudinal portion, said handle being accommodated and guidable in'said lonigtudinal slot portion of said U-shaped slot when being moved therein from one of said ends to the other of said ends thereof, whereby said handle may be swung down into engagement with said transverse slot portions respectively when said bolt is in either retracted inoperative position or extended operative position and thereby locked in either of said positions.

2. In a lock having a casing, a bolt slidably guided in said casing and extendable from aside of said casing, a longitudinal opening within said bolt, said bolt receiving a rotatable pin within said opening, an outwardly di- 'rected operating handle connected to said pin, said bolt having a cutout to permit radial movement of said handle, said casing having a wall provided with a substantially U-shaped slot comprising a longitudinal portion and transverse portions joining the ends of said longitudinal portion, said handle being accommodated and guidable in said longitudinal slot portion'of said U-shaped slot when being moved therein from oneof said ends to the other of said ends thereof, whereby said handle may be swung down into engagement with said transverse slot portions respectively when said bolt is in either retracted inoperative position or extended operative position and thereby locked in either of said positions.

References Cited in the file of' this patent UNITEDSTATES PATENTS 504,262 Adams -Q. Aug. 29, 1893 504,482 Swanson Sept. 5, 1893 1,427,253 -Appldby Aug. 29, 1922 Segal Oct. 7, 1924 

